DIY Refillable Inert OC Practice Unit 

In this short video I'll demonstrate how I recycled an empty OC unit into a refillable inert practice unit for only a few dollars worth of materials and 20 minutes of effort.
Updates: The newest POM inert units are dimensionally identical to the live units and accept a pocket clip identical to the live unit version I built (however, they don't come with one out of the box so you might still want to make your own).
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If you found any of this useful, using the links below will help offset my costs:
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